ICS World Private Investigator Private Investigator Services Since 1967
1 (800) 828-9198 - Toll Free 24hrs
001 480-990-8888 - International
Confidential & Recommended Private Investigator Services Since 1967

Private Investigator Free Consultation (24hrs)

Available 24 hours with Rapid Response

Our Experience, Expertise, and Reliability


Since 1967 - International Counterintelligence Services, (ICS) Inc stands for excellence.


Who? What? Where? When? Why?

International Counterintelligence Services, Inc. (ICS), is one of the few professional private investigation agencies serving private clients, small business, government, commercial, corporations, legal, and insurance industries. ICS is a proud multiple government contract holder in the United States and other parts of the world. ICS is also a security consulting and licensed investigations agencies, originally founded in 1967.  As part of this longevity, we provide several investigative core competencies and are considered a full-service firm.

"The ICS mission is to provide professional private investigations anywhere in the world at any time and report our findings in a timely and accountable manner."


We operate--and offer confidential free consultations--seven days a week and all holidays, for many types of investigations. ICS utilizes state-of-the art equipment and techniques to offer a variety of services, including but by no means limited to eavesdropping & espionage countermeasures, undercover investigations, professional surveillance, background investigations and security consulting. When ICS clients need to draw on the expertise and experience of an investigator or a security consultant, it is with ICS that they quickly and effectively gain the edge.

History of International Counterintelligence Services, Inc.

Accredited Private Investigator

Founded in 1967 by Mr. W. David Rabern, CPP, PPS, CFS, CHS. (Certified Protection Professional, Personal Protection Specialist, Certified Fraud Specialist, Certified in Homeland Security). Mr. Rabern is a renowned private investigator, protection professional, security consultant, and expert witness. His original philosophies of investigative method, security consulting, and protection work, combined with his real-life case experiences materialize in the ICS Method of Approach. This Method of Approach is modified from time to time to meet the needs of each investigative assignment; however, its core principles create an environment to provide reliability for ICS clients. Mr. Rabern passed on this Method of Approach to many investigators in his care over the years. Often copied but not successfully duplicated outside of ICS, the ICS Method of Approach lives on in ICS and now, with the introduction of Mr. Rabern's son Michael D. Rabern, QP (Qualified Party Private Investigator) into the executive staff, the Method of Approach will continue to be successfully implemented.  Mr. Michael Rabern, once described as a spy-master protégé, has participated in the company for more than 14 years; he is now the president of the company.  One principle these Raberns espouse is that ICS does not rely on one expert, but many.  ICS maintains an elite team of experienced private investigators, analysts, and consultants worldwide.

Using this teamwork approach, ICS has become one of the largest and most prestigious agencies of its kind. Headquartered in Scottsdale, AZ (United States), ICS maintains a working relationship with thousands of affiliates and associates throughout the world, all of whom comply with the ICS ethical and professional standards. ICS has been involved in more than 110,000 investigations, intelligence, and counterintelligence operations of full or limited assignment since it was founded in 1967.

Experienced Private Investigators

The ICS investigative experience is diverse and it exemplifies our ability to successfully and reliably handle cases, create and foster theory, and execute clients' instructions in a timely manner. Many of our agents are members of Bilingual Private Investigators group and are  cultural-, national-, and gender-diverse.

The unique ICS investigative method, experienced elite management team, and real-world solutions are key elements of our success. All of our clients can be assured that ICS and its staff will handle their matters and themselves with professionalism above and beyond their expectations. In addition to our corporate and private concern experience, ICS is a current multiple contract holder with many government agencies. We are highly qualified in multiple-scope assignments with ongoing contractual periods.

How We Staff

Reliability is enhanced by a unique staffing solution. ICS uses a professional and competent approach to hiring investigators, using its present private investigators to screen new investigators. By utilizing operatives who have extensive backgrounds in law enforcement, intelligence gathering, counterintelligence, military, specialized experience (i.e. accounting, security, finance, etc.), and consulting, ICS is assured of maintaining a quality and reliable staff.

Surveillance Investigator

ICS investigators must pass a rigorous screening and training process. Private Investigators, regardless of experience, are trained in all aspects of their specific scope of expertise by ICS. This team makes up the elite-of-elite philosophy of ICS staffing. At ICS, we do not generally publish profiles of our staff in the spirit of confidentiality. However, interested parties may review several agent profiles representing a typical cross-section of our abilities and experience by viewing the talent section of our website. Also, ICS is always accepting resumes from either licensed or non licensed private investigators through our private investigator jobs section on the website.

Insurance, Bonded, and Licensed

ICS meets all insurance requirements of errors and omissions, general professional liability, and workers' compensation, and is fully bonded and licensed as a private investigative firm. We have nationwide and often international geographic coverage for the majority of services offered.

When you decide to rely on any investigative solution, you must be fully confident in our ability to keep your case confidential, be discreet, be available, and most of all get results! When you decide to contract ICS you can be assured you're receiving the best we have to offer. Regardless of whether you're a business or an individual, ICS is a company you can trust. Our organizations follow the spirit and intent of the governments' laws in which we operate. You can rest assured your case and its evidence will be acquired and analyzed in compliance with all local, state, and federal laws.


Case Studies

Recent Employment Applications

  • Private Investigator Internship *Intern

    Winnipeg, , Canada02/21/2019

  • Case Consultant and Case Analyst

    Tucson, Arizona, United States02/21/2019

  • Private Investigator Internship *Intern

    Herriman , Utah, United States02/20/2019

  • Private Investigator Internship *Intern

    dhaka, , Bangladesh02/20/2019

  • Experienced Private Investigator

    SAN ANTONIO, Texas, United States02/20/2019


Recent Investigation Inquiries

Origin Investigation Location Case Type
Los Angeles, California California, United States Stalking and Harassment Investigations
Los Angeles, California United States Surveillance (Beacon or GPS tracking)
San Diego, California California, United States Recover Lost Assets Investigation
Derby, Kansas Kansas, United States Other Private Investigator Case
Los Angeles, California Korea, Republic of Locate Lost People
Cleveland, Ohio Ohio, United States Criminal Defense Investigations
South Bend, Indiana Indiana, United States Missing Persons
Mission Viejo, California California, United States Investigación para Clientes que Hablan Español
Los Angeles, California California, United States Other Private Investigator Case
Sherwood, Arkansas Arkansas, United States Adultery or Infidelity Investigations Marital

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Find a Private Investigator by Closest Region

The ICS private investigator network can manage your case locally or across multiple jurisdictions. Your case will be worked by qualified and licensed private investigators where applicable. Through the innovative ICS Licensee Program, we are able to provide local private investigators in several states. Not all services are available in all areas. All private investigators can be identified upon request according to State law. Find a local Private Investigator:

Birmingham
Huntsville
Mobile
Montgomery
Anchorage
Chandler
Gilbert
Glendale
Mesa
Peoria
Phoenix
Scottsdale
Surprise
Tempe
Tucson
LittleRock
Anaheim
Antioch
Bakersfield
Berkeley
Burbank
Carlsbad
ChulaVista
Clovis
Concord
Corona
CostaMesa
DalyCity
Downey
EastLosAngeles
ElCajon
ElMonte
ElkGrove
Escondido
Fairfield
Fontana
Fremont
Fresno
Fullerton
GardenGrove
Glendale
Hayward
HuntingtonBeach
Inglewood
Irvine
Lancaster
LongBeach
LosAngeles
Modesto
MorenoValley
Murrieta
Norwalk
Oakland
Oceanside
Ontario
Orange
Oxnard
Palmdale
Pasadena
Pomona
RanchoCucamonga
Rialto
Richmond
Riverside
Roseville
Sacramento
Salinas
SanBernardino
SanBuenaventura
SanDiego
SanFrancisco
SanJose
SanMateo
SantaAna
SantaClara
SantaClarita
SantaMaria
SantaRosa
SimiValley
Stockton
Sunnyvale
Temecula
ThousandOaks
Torrance
Vallejo
Visalia
Vista
WestCovina
Arvada
Aurora
Boulder
Centennial
ColoradoSprings
Denver
FortCollins
Greeley
Lakewood
Pueblo
Thornton
Westminster
Bridgeport
Hartford
NewHaven
Stamford
Waterbury
Brandon
CapeCoral
Clearwater
CoralSprings
Davie
FortLauderdale
Gainesville
Hialeah
Hollywood
Jacksonville
Lakeland
Miami
MiamiGardens
Miramar
Orlando
PembrokePines
PompanoBeach
St.Petersburg
Tallahassee
Tampa
WestPalmBeach
Athens
Atlanta
Augusta
Columbus
SandySprings
Savannah
Aurora
Chicago
Elgin
Joliet
Naperville
Peoria
Rockford
Springfield
Evansville
FortWayne
Indianapolis
SouthBend
CedarRapids
Davenport
DesMoines
KansasCity
Olathe
OverlandPark
Topeka
Wichita
Louisville
BatonRouge
Lafayette
Metairie
NewOrleans
Shreveport
Baltimore
Boston
Cambridge
Lowell
Springfield
Worcester
AnnArbor
Detroit
Flint
GrandRapids
Lansing
SterlingHeights
Warren
Minneapolis
Rochester
Jackson
Columbia
Independence
KansasCity
Springfield
St.Louis
Billings
Lincoln
Omaha
Henderson
LasVegas
NorthLasVegas
Reno
JerseyCity
Manchester
Paterson
Albuquerque
Buffalo
Rochester
Syracuse
Yonkers
Cary
Charlotte
Durham
Elizabeth
Fayetteville
Greensboro
LasCruces
Newark
NorthCharleston
Raleigh
Wilmington
WinstonSalem
Fargo
Akron
Cincinnati
Cleveland
Columbus
Dayton
Toledo
BrokenArrow
Norman
OklahomaCity
Tulsa
Eugene
Gresham
Hillsboro
Portland
Salem
Allentown
Erie
Philadelphia
Pittsburgh
NewYork
Providence
Charleston
Columbia
SiouxFalls
Chattanooga
Clarksville
Knoxville
Memphis
Murfreesboro
Abilene
Amarillo
Arlington
Austin
Beaumont
Brownsville
Carrollton
CollegeStation
CorpusChristi
Dallas
Denton
ElPaso
FortWorth
Frisco
Garland
GrandPrairie
Houston
Irving
Killeen
Laredo
LeagueCity
Lewisville
Lubbock
McAllen
Mesquite
Odessa
Pasadena
Pearland
Plano
Richardson
RoundRock
SanAngelo
SanAntonio
Tyler
Waco
WichitaFalls
Provo
SaltLakeCity
WestJordan
WestValleyCity
Alexandria
Arlington
Chesapeake
Hampton
NewportNews
Norfolk
Portsmouth
Richmond
VirginiaBeach
Bellevue
Everett
Kent
Renton
Seattle
Spokane
Tacoma
Vancouver
GreenBay
Madison
Milwaukee

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